Design And Implementation Of IP Service Transmission Adaptation Method For Weak Connection And Narrowband Environment

With the increasing updating of technologies such as edge computing and fog computing,services are gradually migrating from the network center to the edge network.However,the edge network is an important issue that needs to be resolved due to its complex environment and heterogeneous nodes.In spe-cial environments,there are still a series of factors that are not conducive to transmission,such as weak links,narrow bandwidth,high delay,packet loss,and bit errors.The existing reliable transmission scheme is mainly based on the TCP protocol,and lacks a lightweight transmission method for narrowband weak link link adaptation.At present,the data distribution service based on the publish/subscribe model has become the basic solution to ensure the real-time and reliability of the business in the distributed network,but the existing edge network lacks effective adaptation to this technology.Therefore,it is necessary to optimize and adapt methods for IP services for the traditional point-to-point unicast and publish-subscribe multicast scenarios under the weak link narrow-band environment to ensure the service transmission requirements under the restricted network.First,introduce the existing reliable transmission and publish/subscribe technologies,and then design the transmission adaptation method for unicast and multicast services according to the characteristics of the weak connection narrowband environment and business requirements,and the overall system requirements based on the method design Perform analysis.Analyze the overall requirements of the system on the basis of the method design.On the basis of system requirements,the overall design and layered module design of the system are carried out,including the basic process of the system,the software architecture of the system,module division,interfaces,etc.Second,detailed design and implementation of key modules,including user management module,business management module,publish-subscribe-based transmission optimization module,and unicast-based transmission op-timization module.Finally,through strict tests on the functions and perfor-mance of the system,the reliability of the system operation and the efficiency of data transmission are verified.The test results show that under the weak link narrowband environment,the system operates with good stability,and the transmission efficiency is significantly improved compared with the traditional protocol,which verifies the feasibility of the design and implementation of the paper.